CN217237797U - Sheet structure crack connectivity detection structure - Google Patents
Sheet structure crack connectivity detection structure Download PDFInfo
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- CN217237797U CN217237797U CN202122214717.4U CN202122214717U CN217237797U CN 217237797 U CN217237797 U CN 217237797U CN 202122214717 U CN202122214717 U CN 202122214717U CN 217237797 U CN217237797 U CN 217237797U
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Abstract
The utility model discloses a sheet structure crack connectivity detects structure, including the concrete sheet that awaits measuring that has the crack, set up at the dyeing apparatus that awaits measuring concrete sheet one side crack department and set up at the concrete sheet that awaits measuring and set up the drier that sets up dyeing apparatus offside crack department, dyeing apparatus is used for providing the fluid coloring agent, and the drier is used for guiding the fluid coloring agent and collects the fluid coloring agent. The utility model discloses utilize fissured capillary water absorption effect and combine the method of pressure injection coloring agent to carry out the crack connectivity and detect. The device has the advantages of simple operation, no strangeness to the existing concrete structure, low cost, intuitive expression of connectivity and the like, and well solves the problem that the a-type through crack is difficult to detect by three detection means, namely an ultrasonic detection method, a drilling coring method and a two-side crack position accurate measurement positioning method.
Description
Technical Field
The utility model relates to a crack depth detection field especially relates to a sheet metal structure crack connectivity detects structure.
Background
The common crack penetration detection methods in engineering are three types: one is ultrasonic detection, when cross-crack detection is used, an ultrasonic emitter is used to emit continuous ultrasonic pulse waves, the ultrasonic pulse waves propagate in the defective concrete member, and a transducer at the other end of the crack receives pulse signals. By receiving parameters such as the sound time and the detection distance of the signal transmitted by the concrete member, the crack defect condition of the concrete can be calculated. The second method is a drilling and coring method, and after the core drilling machine drills and cores the crack position, a core sample can truly and visually reflect the crack depth. And the third method is a method for accurately measuring and positioning the positions of the cracks on the two sides, and the positions and the trends of the cracks on the two sides of the structure are compared to judge whether the cracks are communicated or not.
(1) Ultrasonic detection method
The advantages are that: large detection distance, no damage to structural performance, short period and high efficiency
The disadvantages are that: the requirement on the appearance quality of a working surface is high, the defect is not intuitive, the detection personnel is required to have experience in judging the defect type, and the detection difficulty on the penetration of the class a cracks is high.
Core drilling method
The advantages are that: intuitive, high in precision and simple in operation
The disadvantages are as follows: the structure of the junction is partially damaged, the cost is high, the detection depth is limited, and the a-type penetrating crack cannot be detected
Method for accurately measuring and positioning positions of cracks on two sides
The advantages are that: simple operation, low cost and no influence of structure thickness
The disadvantages are that: low precision, no intuition to defects and low accuracy
By contrast, the existing crack penetration detection methods have certain defects, and in order to detect the crack penetration of a concrete structure more intuitively and conveniently, a thin plate structure crack penetration detection structure is needed to solve the problems.
Disclosure of Invention
The utility model relates to a solve among the prior art current crack connectivity detection method precision low, to the defect not have the problem that intuition nature, accuracy are not high, provide a sheet structure crack connectivity detection structure, utilize cracked capillary water absorption effect and combine the method of pressure injection coloring agent to carry out crack connectivity and detect, solved above-mentioned problem.
The utility model provides a sheet structure crack connectivity detects structure, including the concrete sheet metal that awaits measuring that has the crack, set up at the dyeing apparatus of concrete sheet metal one side crack department that awaits measuring and set up at the concrete sheet metal that awaits measuring and set up the drier that sets up dyeing apparatus offside crack department, dyeing apparatus is used for providing the fluid coloring agent, and the drier is used for guiding the fluid coloring agent and collects the fluid coloring agent.
A sheet structure crack connectivity detects structure, as preferred mode, the concrete sheet metal that awaits measuring includes surface treatment district, mounting groove and concrete sheet metal body, has the crack of awaiting measuring on the concrete sheet metal body, surface treatment covers the crack of awaiting measuring, and sets up in concrete sheet metal body and sets up dyeing apparatus one side, the mounting groove sets up in surface treatment district covers the position and feeds through the crack of awaiting measuring, surface treatment district is clear concrete surface, the mounting groove is the column counter bore.
A sheet metal structure crack connectivity detects structure, as preferred mode, the dyeing apparatus includes the coloring agent, the injection base, the injection tube, the injection pole, spring and piston, the piston sets up inside the injection tube, the injection tube is the tube structure, injection tube one end is provided with the through-hole, the injection tube other end is provided with the liquid outlet, the injection pole passes the through-hole and connects the piston, the piston is cut apart into inclosed two parts with the injection tube, the injection base sets up in the liquid outlet position, the injection base is used for installing with the mounting groove cooperation, the coloring agent sets up in one side of the injection tube of piston division together with the liquid outlet, the spring sets up in the injection tube together with through-hole one side, spring and injection pole coaxial line.
A sheet structure crack connectivity detects structure, as preferred mode, dyeing apparatus includes coloring agent, liquid container and injection port, liquid container is for taking out shell geometry, the injection port intercommunication liquid container is inside and outside, installs in the mounting groove position, the coloring agent sets up in liquid container.
A sheet structure crack connectivity detects structure, as preferred mode, the relative mounting groove of injection base is sealed, the concrete sheet metal that awaits measuring that sets up the drier position carries out the surface dusting.
A sheet metal construction crack connectivity detects structure, as preferred mode, the relative mounting groove of injection port is sealed, the concrete sheet metal that awaits measuring that sets up the drier position carries out the surface dusting.
The method has the advantages of simplicity in operation, no damage to the existing concrete structure, lower cost, intuitional expression of the penetration property and the like, and well solves the problem that the detection of the a-type penetration cracks by the three detection means is difficult.
The utility model discloses beneficial effect as follows:
and (3) carrying out crack penetration detection by utilizing the capillary water absorption effect of the crack and combining a method of injecting a coloring agent by pressure. The device structure has the advantages of simplicity in operation, no strangeness to the existing concrete structure, lower cost, intuitional expression of connectivity and the like, and well solves the problem that the detection of the a-type through crack is difficult by three detection means, namely an ultrasonic detection method, a drilling coring method and a two-side crack position accurate measurement positioning method.
Drawings
FIG. 1 is a schematic diagram of a thin plate structure for detecting crack penetration;
FIG. 2 is a schematic diagram of a concrete sheet to be tested of a sheet structure crack connectivity detection structure;
FIG. 3 is a schematic view of an embodiment 1 of a dyeing apparatus for a thin plate structure crack penetration detection structure;
fig. 4 is a schematic view of an embodiment 2 of a dyeing apparatus for a thin plate structure crack penetration detection structure.
Reference numerals are as follows:
1. a concrete sheet to be tested; 11. a surface treatment zone; 12. mounting grooves; 13. a concrete sheet body; 2. a dyeing device; 21. a coloring agent; 22. an injection base; 23. an injection tube; 24. an injection rod; 25. a spring; 26. a piston; 27. a liquid container; 28. an injection port; 3. A desiccant.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Example 1
As shown in fig. 1, a thin plate structure crack penetration detection structure includes a concrete thin plate 1 to be detected having a crack, a dyeing device 2 disposed at the crack on one side of the concrete thin plate 1 to be detected, and a drying agent 3 disposed at the crack on the opposite side of the concrete thin plate 1 to be detected, where the dyeing device 2 is disposed, the drying agent 3 is used for guiding a fluid coloring agent 21 and collecting the fluid coloring agent.
As shown in fig. 2, the concrete sheet 1 to be measured includes a surface treatment area 11, a mounting groove 12 and a concrete sheet body 13, a crack to be measured is to be measured on the concrete sheet body 13, the surface treatment area 11 covers the crack to be measured, and is arranged on one side of the concrete sheet body 13 where the dyeing device 2 is arranged, the mounting groove 12 is arranged in the covering position of the surface treatment area 11 and is communicated with the crack to be measured, the surface treatment area 11 is a clean concrete surface, and the mounting groove 12 is a cylindrical counter bore.
As shown in fig. 3, the dyeing apparatus 2 includes a dyeing agent 21, an injection base 22, an injection tube 23, an injection rod 24, a spring 25 and a piston 26, the piston 26 is disposed inside the injection tube 23, the injection tube 23 is of a tube structure, one end of the injection tube 23 is provided with a through hole, the other end of the injection tube 23 is provided with a liquid outlet, the injection rod 24 passes through the through hole to be connected with the piston 26, the piston 26 divides the injection tube 23 into two closed parts, the injection base 22 is disposed at the position of the liquid outlet, the injection base 22 is used for being installed in cooperation with the installation groove 12, the dyeing agent 21 is disposed at one side of the injection tube 23 divided by the piston 26 together with the liquid outlet, the spring 25 is disposed at one side of the injection tube 23 together with the through hole, and the spring 25 and the injection rod 24 are coaxial. The injection base 22 is sealed relative to the installation groove 12, and the concrete sheet 1 to be tested at the position where the drying agent 3 is arranged is subjected to surface ash removal.
The principle of capillary water absorption of concrete is that when concrete pores are unsaturated, the contact of concrete and solution can raise the capillary pore pressure, and the solution is absorbed into the concrete pores. Compared with solutions such as acetone and ethanol, the surface tension of water is larger, and the capillary action is stronger. Water is chosen as the carrier for the staining agent.
Selection of a coloring agent: the coloring agent is selected from the coloring agents which have no erosion to concrete, are easy to dissolve in water, have dark color, good permeability and strong capillary action.
The application range is as follows: the thickness of the concrete structure is less than or equal to 250mm, and the width of the crack is between 0.04mm and 1.0 mm.
The detection process comprises the following steps:
selecting a crack: and after the structure is subjected to appearance inspection, selecting and determining the crack to be detected.
Surface treatment: and determining a detection area (the detection area is selected to be close to the top of the crack), cleaning the concrete surface of the detection area, and removing surface stains. In order to better exert the capillary action of the concrete, the cracks are dried by a dryer so as to keep the concrete dry.
Installing an injection base: and (3) crossing the crack position in the detection area, carrying out grooving treatment by using a grooving machine, wherein the grooving depth is less than 10mm, installing the injection base in the clamping groove, closely attaching the injection base to the structure surface, and sealing the periphery of the base by using sealant.
Installing a pressure injector: and after the sealant reaches the strength, installing an injector, and filling the dyeing agent into the pressure injector and screwing the injector into the injection base.
Coating a drying agent: and coating a drying agent on the crack position on the opposite side of the thin plate concrete structure.
And (3) starting detection: the screw injection rod is rotated to start pressurizing the pressure injector.
And (4) result discrimination:
the side with the color agent is oozed out, then the crack is judged to be through.
And if the scales of the coloring agent in the injector are not changed after 6 hours, judging that the crack is not penetrated.
Example 2
As shown in fig. 1, a thin plate structure crack penetration detection structure includes a concrete thin plate 1 to be detected having a crack, a dyeing device 2 disposed at the crack on one side of the concrete thin plate 1 to be detected, and a drying agent 3 disposed at the crack on the opposite side of the concrete thin plate 1 to be detected where the dyeing device 2 is disposed, wherein the dyeing device 2 is used for providing a fluid dyeing agent, and the drying agent 3 is used for guiding the fluid dyeing agent 21 and collecting the fluid dyeing agent.
As shown in fig. 2, the concrete sheet 1 to be measured includes a surface treatment area 11, a mounting groove 12 and a concrete sheet body 13, a crack to be measured is to be measured on the concrete sheet body 13, the surface treatment area 11 covers the crack to be measured, and is arranged on one side of the concrete sheet body 13 where the dyeing device 2 is arranged, the mounting groove 12 is arranged in the covering position of the surface treatment area 11 and is communicated with the crack to be measured, the surface treatment area 11 is a clean concrete surface, and the mounting groove 12 is a cylindrical counter bore.
As shown in fig. 4, the dyeing apparatus 2 includes a dyeing agent 21, a liquid container 27 and an injection port 28, the liquid container 27 is in a shell-drawing geometry, the injection port 28 is connected to the inside and the outside of the liquid container 27 and is installed at the position of the installation groove 12, and the dyeing agent 21 is arranged in the liquid container 27. The injection port 28 is sealed relative to the installation groove 12, and the concrete sheet 1 to be tested at the position provided with the drying agent 3 is subjected to surface ash removal.
The principle of capillary water absorption of concrete is that when concrete pores are unsaturated, the contact of concrete and solution can raise the capillary pore pressure, and the solution is absorbed into the concrete pores. Compared with solutions such as acetone and ethanol, the surface tension of water is larger, and the capillary action is stronger. Water is chosen as the carrier for the stain.
Selection of a coloring agent: the coloring agent should be selected to be non-corrosive to concrete, easily soluble in water, darker in color, good in permeability and stronger in capillary action.
The application range is as follows: the thickness of the concrete structure is less than or equal to 250mm, and the width of the crack is between 0.04mm and 1.0 mm.
The detection process comprises the following steps:
(1) selecting a crack: and after the structure is subjected to appearance inspection, selecting and determining the cracks to be detected.
(2) Grooving: and determining a detection area (the detection area is selected to be close to the top of the crack), and performing slotting treatment on an area with the diameter of 30mm in the detection area across the crack position, wherein the slotting depth is about 10 mm.
(3) And (3) surface treatment, namely cleaning the surface of the concrete after grooving and removing floating ash on the surface. In order to better exert the capillary action of the concrete, the cracks are dried by a dryer so as to keep the concrete dry.
(4) Installing an injection device: the injection device is arranged in the clamping groove, and the injection device and the structural concrete need to be tightly attached and sealed by sealant.
(5) Coating a drying agent: and after the sealant reaches the strength, coating a drying agent on the crack position on the opposite side of the thin plate concrete structure.
(6) And (3) starting detection: after filling the dye into the injection device, the injection device cap is tightened.
And (4) result discrimination:
(1) if the dyeing agent is oozed out from the side, the crack is judged to be penetrated.
(2) And if the scale of the coloring agent in the injection device does not change for 24 hours, judging that the crack is not penetrated.
The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a sheet structure crack connectivity detects structure which characterized in that: including concrete sheet metal (1) that awaits measuring that has the crack, set up and be in dyeing apparatus (2) and the setting of concrete sheet metal (1) one side crack department of awaiting measuring are in concrete sheet metal (1) that awaits measuring sets up dyeing apparatus (2) drier (3) to the side crack department, dyeing apparatus (2) are used for providing the fluid coloring agent, drier (3) are used for the guide fluid coloring agent (21) and collect the fluid coloring agent.
2. The structure for detecting the penetration of a crack in a sheet structure according to claim 1, wherein: concrete sheet (1) that awaits measuring includes surface treatment district (11), mounting groove (12) and concrete sheet body (13), there is the crack of awaiting measuring on concrete sheet body (13), surface treatment district (11) covers the crack of awaiting measuring, and set up in concrete sheet body (13) sets up dyeing apparatus (2) one side, mounting groove (12) set up in surface treatment district (11) cover the position and communicate the crack of awaiting measuring, surface treatment district (11) are clear concrete surface, mounting groove (12) are the column counter bore.
3. The structure for detecting the penetration of a crack in a thin plate structure according to claim 2, wherein: the dyeing device (2) comprises a dyeing agent (21), an injection base (22), an injection cylinder (23), an injection rod (24), a spring (25) and a piston (26), the piston (26) is arranged in the injection cylinder (23), the injection cylinder (23) is of a cylinder structure, one end of the injection cylinder (23) is provided with a through hole, the other end of the injection cylinder (23) is provided with a liquid outlet, the injection rod (24) penetrates through the through hole to be connected with the piston (26), the piston (26) divides the injection cylinder (23) into two closed parts, the injection base (22) is arranged at the position of the liquid outlet, the injection base (22) is used for being installed in a matching way with the installation groove (12), the dyeing agent (21) is arranged at one side of the injection cylinder (23) divided by the piston (26) and the liquid outlet, the spring (25) is arranged at one side of the injection cylinder (23) and the through hole, the spring (25) is coaxial with the injection rod (24).
4. The structure for detecting the penetration of a crack in a thin plate structure according to claim 2, wherein: dyeing apparatus (2) include coloring agent (21), liquid container (27) and injection port (28), liquid container (27) are for taking out shell geometry, injection port (28) intercommunication inside and outside liquid container (27), install in mounting groove (12) position, coloring agent (21) set up in the liquid container (27).
5. The structure for detecting the penetration of a crack in a thin plate structure according to claim 3, wherein: the injection base (22) is sealed relative to the installation groove (12), and the concrete thin plate (1) to be tested is arranged at the position of the drying agent (3) to remove dust on the surface.
6. The structure for detecting the penetration of a crack in a thin plate structure according to claim 4, wherein: the injection port (28) is sealed relative to the installation groove (12), and the concrete sheet (1) to be tested, which is provided with the drying agent (3), is subjected to surface ash removal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122214717.4U CN217237797U (en) | 2021-09-14 | 2021-09-14 | Sheet structure crack connectivity detection structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122214717.4U CN217237797U (en) | 2021-09-14 | 2021-09-14 | Sheet structure crack connectivity detection structure |
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| CN217237797U true CN217237797U (en) | 2022-08-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115683980A (en) * | 2022-11-18 | 2023-02-03 | 无锡市欧凯电子有限公司 | Automatic pressure-regulating concrete permeameter and use method thereof |
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- 2021-09-14 CN CN202122214717.4U patent/CN217237797U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115683980A (en) * | 2022-11-18 | 2023-02-03 | 无锡市欧凯电子有限公司 | Automatic pressure-regulating concrete permeameter and use method thereof |
| CN115683980B (en) * | 2022-11-18 | 2024-01-16 | 无锡市欧凯电子有限公司 | Automatic pressure-regulating concrete penetrometer and use method thereof |
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